<template>
  <div>
    <nav-bar>
      <div slot='left' class='back' @click='backClick'>
        <img src="~assets/img/common/back.svg" alt="">
      </div>
      <div slot='center' class='title'>
        <div v-for='(item, index) in titles' class='title-item' :class='{active: index === currentIndex}' @click="titleClick(index)">
          {{item}}
        </div>
      </div>
    </nav-bar>
  </div>
</template>

<script>
import NavBar from 'components/common/navbar/NavBar'


export default {
  name: 'DetailNavBar',
  components: {
    NavBar
  },
  data() {
    return {
      titles: ['商品', '参数', '评论', '推荐'],
      currentIndex: 0
    }
  },
  methods: {
    titleClick(index) {
      this.currentIndex = index
    },
    backClick() {
      this.$router.back()
    }
  }
}
</script>

<style scoped>
  .title {
    display: flex;
    font-size: 13px;
  }
  .title-item {
    flex: 1
  }
  .active {
    color: var(--color-high-text)
  }
  .back img{
    margin-top: 12px;
  }
</style>
